{"id":24304,"date":"2023-11-30T23:55:12","date_gmt":"2023-11-30T22:55:12","guid":{"rendered":"https:\/\/icmsva.vallealto.es\/?articulos_sci=plasticized-greaseproof-chitin-bioplastics-with-high-transparency-and-biodegradability"},"modified":"2026-04-14T11:43:06","modified_gmt":"2026-04-14T09:43:06","slug":"plasticized-greaseproof-chitin-bioplastics-with-high-transparency-and-biodegradability","status":"publish","type":"articulos_sci","link":"https:\/\/icmsva.vallealto.es\/?articulos_sci=plasticized-greaseproof-chitin-bioplastics-with-high-transparency-and-biodegradability","title":{"rendered":"Plasticized, greaseproof chitin bioplastics with high transparency and biodegradability"},"content":{"rendered":"<figure><img decoding=\"async\" src=\"https:\/\/icmsva.vallealto.es\/wp-content\/uploads\/2023\/11\/Plasticized-greaseproof-chitin-bioplastics-with-h-1.png\" alt=\"Plasticized, greaseproof chitin bioplastics with high transparency and biodegradability\" \/><\/figure>\n<p>A mixture of trifluoroacetic acid:trifluoroacetic anhydride (TFA:TFAA) was used to dissolve\u00a0chitin\u00a0from shrimp shells. Free-standing films were prepared by blending the\u00a0chitin\u00a0solution and glycerol at different percentages, followed by drop-casting, and the complete evaporation of the solvents. After this process, the\u00a0chitin\u00a0matrix showed an amorphous molecular structure, as determined by X-ray diffraction. Optical, mechanical, thermal, and antioxidant properties were also thoroughly investigated. The incorporation of glycerol induced a plasticizing effect on the mechanical response of films and improved their\u00a0transparency. In addition, hydrodynamic and barrier properties were determined by contact angle and water vapor\/oxygen transmission rates, respectively, and revealed typical values of other polysaccharides. These\u00a0bioplastics\u00a0also presented an excellent\u00a0greaseproof\u00a0behavior\u00a0with\u00a0the highest degree of oil repellency as determined by the Kit test. Moreover, the overall migration was evaluated by using Tenax &amp; REG; as a dry food simulant and levels were compliant\u00a0with\u00a0European regulations. Their antifungal properties were tested using Botrytis cinerea as a model.\u00a0Biodegradability\u00a0was also determined by measuring the biological oxygen demand in seawater. Degradation rates were\u00a0high\u00a0and similar to those of other fully-degradable materials.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A mixture of trifluoroacetic acid:trifluoroacetic anhydride (TFA:TFAA) was used to dissolve\u00a0chitin\u00a0from shrimp shells. Free-standing films were prepared by blending the\u00a0chitin\u00a0solution and glycerol at different percentages, followed by drop-casting, and the complete evaporation of the solvents. After this process, the\u00a0chitin\u00a0matrix showed an amorphous molecular structure, as determined by X-ray diffraction. Optical, mechanical, thermal, and antioxidant properties&hellip;<\/p>\n","protected":false},"featured_media":24305,"template":"","autores":[],"grupos_de_investigacion":[6508],"revistas":[1435],"anos":[882],"destacados":[7211],"class_list":["post-24304","articulos_sci","type-articulos_sci","status-publish","has-post-thumbnail","hentry","grupos_de_investigacion-materiales-para-energia-y-sostenibilidad","revistas-food-hydrocolloids","anos-882","destacados-destacado","description-off"],"acf":[],"_links":{"self":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/24304","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci"}],"about":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/types\/articulos_sci"}],"version-history":[{"count":1,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/24304\/revisions"}],"predecessor-version":[{"id":24306,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/24304\/revisions\/24306"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/media\/24305"}],"wp:attachment":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24304"}],"wp:term":[{"taxonomy":"autores","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fautores&post=24304"},{"taxonomy":"grupos_de_investigacion","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fgrupos_de_investigacion&post=24304"},{"taxonomy":"revistas","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Frevistas&post=24304"},{"taxonomy":"anos","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fanos&post=24304"},{"taxonomy":"destacados","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fdestacados&post=24304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}